Design of a novel carbon/BiOBr nanosheet photoanode and its photoelectrochemical application

A novel carbon/BiOBr (C/BiOBr) photoanode with interesting electronic structure is designed. Carbon atoms are connected with bismuth (Bi) and bromine (Br) atoms by electron interaction. Such an electron interaction changes the chemical environments of Bi and Br, so that results in enhanced visible l...

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Published inJournal of materials science. Materials in electronics Vol. 31; no. 23; pp. 20858 - 20867
Main Authors Shang, Jun, Gao, Yanjun, Zhao, Bing, Shen, Shiqi, Wang, Xianwei
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2020
Springer Nature B.V
Subjects
Bismuth
Bromine
Carbon
Characterization and Evaluation of Materials
Charge transfer
Chemical bonds
Chemistry and Materials Science
Circuits
Current carriers
Electromagnetic absorption
Electronic structure
Materials Science
Nanosheets
Open circuit voltage
Optical and Electronic Materials
Photoanodes
Photoelectrochemical devices
Pollutants
Short circuit currents
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Summary:A novel carbon/BiOBr (C/BiOBr) photoanode with interesting electronic structure is designed. Carbon atoms are connected with bismuth (Bi) and bromine (Br) atoms by electron interaction. Such an electron interaction changes the chemical environments of Bi and Br, so that results in enhanced visible light absorption capacity and high transfer rate of charge carriers. Photoelectrochemical cell (PEC) system has been constructed to study the photoelectrochemical property of C/BiOBr photoanode. The short-circuit current ( J sc ) and open-circuit voltage ( V oc ) of C/BiOBr are measured to be 0.057 mA/cm 2 and 0.296 V, which are higher than that in PEC with the pristine BiOBr photoanode. The proposed chemically bonded C/BiOBr photoanode offers potential for electricity generation and pollutants degradation.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-020-04599-7